The document describes TOA's CS-154 and CS-304 outdoor wide-range speakers. The speakers use wide-range horns to provide high quality background music or paging announcements over a wide area. They are designed for outdoor use and have weatherproof enclosures that can withstand demanding environmental conditions. The speakers have adjustable impedance settings and provide high output with increased efficiency through the use of a horn and cone speaker combination.

1. CS-154/CS-304
Wide Range Speaker
APPEARANCE AND
DIMENSIONAL DIAGRAM
272
366 171.5
172
230
144
600
Black White
37
DESCRIPTION
TOA's CS-154 and CS-304 speakers are for outdoor-use, they use
51 51 3 –ø11
wide-range horns that can provide background music or paging 236
announcements which have high quality sound. They are designed to 257 Unit: mm
produce high output with an increase of the speaker acoustic
conversion efficiency, by the use of a horn in combination with a cone
speaker. The CS-154 and CS-304 use constant directivity horns (90° Wiring Diagram
horizontal) to control sound directivity, realizing uniform and clear CS-154 CS-304
sound dispersion over a wide area. These wide-range speakers are Black (N) Black (N)
2kΩ 8Ω 1kΩ 8Ω
also designed to stand up to the rigorous weather conditions when 1kΩ 500Ω
670Ω 330Ω
installed outdoors.* The speakers' ABS resin enclosure is light in 330Ω 170Ω
weight, structurally strong and resistant to impacts. Since the White (C) 0
White (C) 0
enclosures are also treated with weatherproof polyurethane resin
paint, they are extremely resistant to the effects of ultraviolet light. The (Transformer connection when the speaker is supplied from the factory)
speakers also comply with IP65 Standard requirements for dust proof
and waterproof capabilities. In addition, the internal speaker parts
feature a special weatherproof treatment to enhance the waterproof
properties of the entire speaker. Stainless-steel brackets and screws
further protect the unit from rust and corrosion. Speaker impedance
can be easily changed externally with a rotary switch, facilitating
changes in impedance during and after speaker installation.
CS-154: 15W/10W/5W (100V line) and 15W/7.5W/5W/2.5W (70V line)
CS-304: 30W/20W/10W (100V line) and 30W/15W/10W/5W (70V line)
FEATURES
• Wide-range paging speaker for voice paging, background music and tone signaling distribution.
• Constant directivity horn improves directivity characteristics and ensure uniform and clear sound dispersion.
• High sensitivity: up to 98 dB (1W/1m)
• Weatherproof polyurethane resin paint permits the speaker to withstand demanding environmental conditions.*
• IP65 standard compliant.
• Lightweight ABS resin enclosure that is mechanically strong and resistant to impact.
• Stainless steel hardware protects the speaker from corrosion.
• Stainless steel mounting bracket for easy installation and aiming in wall, pole or ceiling-mount applications.
• Ideal for schools, parking facilities, boats, industrial, parks, swimming pools, and so on.
* Do not install the speaker face-up from a horizontal plane nor in such a way that the paper cone is exposed to direct sunlight.
If water accumulates on the paper cone, or ultraviolet rays are radiated on it, this may cause the paper cone to deteriorate, leading to speaker malfunction.
TOA Corporation CS-154/304 1/4

2. CHARACTERISTIC DIAGRAMS
Frequency Response(1W/1m:1/3 Octave Pink Noise) Beamwidth vs. Frequency
CS-154 [dB] [deg]
100
90 200
80
Beamwidth
100
SPL
70
60 50
50
40
30
20 50 100 500 1k 5k 10k 20k 10
[Hz] 20 50 100 500 1k 5k 10k 20k
Frequency fundamental
Hor. [Hz]
Frequency
Ver.
Directivity Factor vs. Frequency
[Q]
20
Directivity Factor
10
5
1
20 50 100 500 1k 5k 10k 20k
Frequency [Hz]
Polar Response
horizontal
vertical
0° 0° 0° 0°
10 10 10 10
30° 330° 30° 330° 30° 330° 30° 330°
0 0 0 0
-10 -10 -10 -10
60° -20 300° 60° -20 300° 60° -20 300° 60° -20 300°
-30 -30 -30 -30
-40 -40 -40 -40
270° 270° 270° 270°
90° 90° 90°
-40 -40 -40 -40
-30 -30 -30 90° -30
120° -20 120° -20 -20 120° -20
240° 240° 120° 240° 240°
-10 -10 -10 -10
0 0 0 0
150° 210° 150° 210° 150° 210° 150° 210°
10 1000Hz Horizontal 10 2000Hz Horizontal 10 1000Hz Vertical 10 2000Hz Vertical
180° 800Hz Horizontal 1600Hz Horizontal 180° 800Hz Vertical 180° 1600Hz Vertical
630Hz Horizontal 1250Hz Horizontal 630Hz Vertical 1250Hz Vertical
0° 0° 0°
10 10 10 10
30° 330° 30° 330° 30° 330° 30° 330°
0 0 0 0
-10 -10 -10 -10
60° -20 300° 60° -20 300° 60° 300° 60° 300°
-20 -20
-30 -30 -30 -30
-40 -40 -40 -40
270° 270° 270° 270°
90° 90° 90° 90°
-40 -40 -40 -40
-30 -30 -30 -30
120° -20 120° -20 -20 -20
240° 240° 120° 240° 120° 240°
-10 -10 -10 -10
0 0 0 0
150° 210° 150° 210° 150° 210° 150° 210°
10 4000Hz Horizontal 10 8000Hz Horizontal 10 10
4000Hz Vertical 8000Hz Vertical
180° 3150Hz Horizontal 180° 6300Hz Horizontal 180° 3150Hz Vertical 180° 6300Hz Vertical
2500Hz Horizontal 5000Hz Horizontal 2500Hz Vertical 5000Hz Vertical
0° 0°
10 10
30° 330° 30° 330°
0 0
-10 -10
60° -20 300° 60° 300°
-20
-30 -30
-40 -40
270° 270°
90° 90°
-40 -40
-30 -30
120° -20 -20
240° 120° 240°
-10 -10
0 0
150° 210° 150° 210°
10 16000Hz Horizontal 10 16000Hz Vertical
180° 12500Hz Horizontal 180° 12500Hz Vertical
10000Hz Horizontal 10000Hz Vertical
TOA Corporation CS-154/304 2/4

3. CHARACTERISTIC DIAGRAMS
Frequency Response(1W/1m:1/3 Octave Pink Noise) Beamwidth vs. Frequency
CS-304 [dB] [deg]
100
90 200
80
Beamwidth
100
SPL
70
60 50
50
40
30
20 50 100 500 1k 5k 10k 20k 10
[Hz] 20 50 100 500 1k 5k 10k 20k
Frequency fundamental
Frequency Hor. [Hz]
Ver.
Directivity Factor vs. Frequency
[Q]
20
10
Directivity Factor
5
1
20 50 100 500 1k 5k 10k 20k
[Hz]
Frequency
Polar Response
horizontal
vertical
0° 0° 0° 0°
10 10 10 10
30° 330° 30° 330° 30° 330° 30° 330°
0 0 0 0
-10 -10 -10 -10
60° -20 300° 60° -20 300° 60° -20 300° 60° -20 300°
-30 -30 -30 -30
-40 -40 -40 -40
270° 270° 270° 270°
90° 90° 90°
-40 -40 -40 -40
-30 -30 -30 90° -30
120° -20 120° -20 120° -20 120° -20
240° 240° 240° 240°
-10 -10 -10 -10
0 0 0 0
150° 210° 150° 210° 150° 210° 150° 210°
10 1000Hz Horizontal 10 2000Hz Horizontal 10 1000Hz Vertical 10 2000Hz Vertical
180° 800Hz Horizontal 1600Hz Horizontal 180° 800Hz Vertical 180° 1600Hz Vertical
630Hz Horizontal 1250Hz Horizontal 630Hz Vertical 1250Hz Vertical
0° 0° 0°
10 10 10 10
30° 330° 30° 330° 30° 330° 30° 330°
0 0 0 0
-10 -10 -10 -10
60° -20 300° 60° -20 300° 60° -20 300° 60° -20 300°
-30 -30 -30 -30
-40 -40 -40 -40
270° 270° 270° 270°
90° 90° 90° 90°
-40 -40 -40 -40
-30 -30 -30 -30
120° -20 120° -20 -20 -20
240° 240° 120° 240° 120° 240°
-10 -10 -10 -10
0 0 0 0
150° 210° 150° 210° 150° 210° 150° 210°
10 4000Hz Horizontal 10 8000Hz Horizontal 10 10
4000Hz Vertical 8000Hz Vertical
180° 3150Hz Horizontal 180° 6300Hz Horizontal 180° 3150Hz Vertical 180° 6300Hz Vertical
2500Hz Horizontal 5000Hz Horizontal 2500Hz Vertical 5000Hz Vertical
0° 0°
10 10
30° 330° 30° 330°
0 0
-10 -10
60° -20 300° 60° -20 300°
-30 -30
-40 -40
270° 270°
90° 90°
-40 -40
-30 -30
120° -20 120° -20
240° 240°
-10 -10
0 0
150° 210° 150° 210°
10 16000Hz Horizontal 10 16000Hz Vertical
180° 12500Hz Horizontal 180° 12500Hz Vertical
10000Hz Horizontal 10000Hz Vertical
TOA Corporation CS-154/304 3/4

4. SPECIFICATIONS
Model No. CS-154 CS-304
Rated Input 15W 30W
Rated Impedance 100V line: 670Ω (15W), 1kΩ (10W), 2kΩ (5W) 100V line: 330Ω (30W), 500Ω (20W), 1kΩ (10W)
70V line: 330Ω (15W),670Ω (7.5W), 1kΩ (5W), 2kΩ (2.5W) 70V line: 170Ω (30W),330Ω (15W), 500Ω (10W), 1kΩ (5W)
Sensitivity (1W, 1m) 97dB 98dB
Frequency Response 150 – 15,000Hz 120 – 15,000Hz
Speaker Component 12cm (4.72") cone-type
Horizontal Directivity Constant directivity horn 90° (±45° horizontal from front axis)
93dB or more (1W, 1m), 3kHz at ±45°
Speaker Cord 2-core cabtyre cord with diameter of 6mm (0.24")
OperatingTemperature –20°C to +55°C (-4°F to -131°F)
Dust/Water Protection IP65
Finish Horn, cover: ABS resin, off-white, paint
Bracket: Stainless steel
Net: Aluminum, gray, paint
Screw: Stainless steel
Dimensions 366 (W) × 230 (H) × 272 (D) mm (14.40” × 9.06” × 10.71”)
Weight 2.8kg (6.17 lb) 3.1kg (6.83 lb)
Note: Do not install the speaker face-up from a horizontal plane nor in such a way that the paper cone is exposed to direct sunlight.
If water accumulates on the paper cone, or ultraviolet rays are radiated on it, this may cause the paper cone to deteriorate, leading to speaker malfunction.
ARCHITECTURAL AND ENGINEERING SPECIFICATIONS
The speaker shall be a wide-range weatherproof horn speaker The speaker shall be a wide-range weatherproof horn speaker
suitable for paging, background music and tone signaling suitable for paging, background music and tone signaling
distribution. The speaker component shall be a 12 cm (4.72") distribution. The speaker component shall be a 12 cm (4.72")
cone-type speaker, treated for weather-resistance. Rated input cone-type speaker, treated for weather-resistance. Rated input
shall be 15 W. The speaker shall include a transformer having shall be 30 W. The speaker shall include a transformer having
multiple taps (5W, 10W, 15W at 100 V and 2.5W, 5W, 7.5W, multiple taps (10W, 20W, 30W at 100 V and 5W, 10W, 15W,
15W at 70V). The sensitivity at a distance of 1m with a 1W input 30W at 70V). The sensitivity at a distance of 1m with a 1W input
level applied shall be 97 dB. The speaker shall have a level applied shall be 98 dB. The speaker shall have a
frequency response of 150 - 15 kHz. Horizontal and vertical frequency response of 120 - 15 kHz. Horizontal and vertical
dispersion at –6 dB below the on-axis reference at 2 kHz shall dispersion at –6 dB below the on-axis reference at 2 kHz shall
be 110° (H) x 85° (V). be 100° (H) x 85° (V).
The speaker shall have a IEC 529 splash-proof rating of IP65. The speaker shall have a IEC 529 splash-proof rating of IP65.
The speaker shall have an operating temperature of -20° C to The speaker shall have an operating temperature of -20° C to
+55° C (-4° F to 131° F). The speaker enclosure shall be +55° C (-4° F to 131° F). The speaker enclosure shall be
constructed of ABS resin and coated with polyurethane resin constructed of ABS resin and coated with polyurethane resin
paint to resist long-term exposure to ultraviolet light. The grille paint to resist long-term exposure to ultraviolet light. The grille
shall be constructed of a protective aluminum net to prevent shall be constructed of a protective aluminum net to prevent
damage, gray paint. All mounting hardware, including screws damage, gray paint. All mounting hardware, including screws
and bolts, shall be stainless steel, which protects the speaker and bolts, shall be stainless steel, which protects the speaker
from corrosion. The wide-range weatherproof paging horn shall from corrosion. The wide-range weatherproof paging horn shall
include an integral speaker cable, 2-core cabtyre cord with include an integral speaker cable, 2-core cabtyre cord with
diameter of 6 mm (0.24") diameter. diameter of 6 mm (0.24") diameter.
Dimensions shall be 366(W) × 230(H) × 272(D) mm (14.40” × Dimensions shall be 366(W) × 230(H) × 272(D) mm (14.40” ×
9.06” × 10.71”). Weight shall be 2.8 kg (6.17 lb.). 9.06” × 10.71”). Weight shall be 3.1 kg (6.83 lb.).
The wide-range weatherproof horn speaker shall be TOA model The wide-range weatherproof horn speaker shall be TOA model
CS-154. CS-304.
TOA Corporation
www.toa.jp
TOA Corporation CS-154/304 4/4 Specifications are subject to change without notice.
(0811) 833-62-255-20 u